Anyone use Reading Street (5th Grade) with fidelity?

I was wondering if anyone has to use Reading Street with fidelity at their school? In the past we have not had to and could supplement or do what we want. However, this year we will be required to use it with fidelity... including the writing portion. The only thing that will be a separate program is grammar and we use Exercises in English for that. Just trying to get some thoughts/ opinions on this. Do you like it? Benefits vs. cons etc. Thanks for your thoughts

Our curriculum is written using Reading Street 5th grade Texas Version. We are allowed to use/not use different parts of the curriculum. They are pushing us toward reader's workshop this year it seems (our book study is The Book Whisperer) and our curriculum doesn't fit with that at all. I'm trying to decide how that's all going to work out.